New-Object : Cannot find type [Microsoft.SharePoint.Client.ClientContext]: make sure the assembly containing this type is loaded.
+ $ctx = New-Object Microsoft.SharePoint.Client.ClientContext($siteURL)
+        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidType: (:) [New-Object], PSArgumentException
    + FullyQualifiedErrorId : TypeNotFound,Microsoft.PowerShell.Commands.NewObjectCommand